Home / 65,277.77-90,076.52-38,418.66

Finding the Fourth Proportional to 65,277.77, 90,076.52 and 38,418.66

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Solution

The fourth proportional to 65,277.77, 90,076.52 and 38,418.66 is: 53,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,277.77 : 90,076.52 = 38,418.66 : x
  2. Step 2: Convert to fraction form
    65,277.77/90,076.52 = 38,418.66/x
  3. Step 3: Cross multiply
    65,277.77x = 90,076.52 × 38,418.66
  4. Step 4: Simplify right side
    65,277.77x = 3,460,619,291.91
  5. Step 5: Solve for x
    x = 3,460,619,291.91/65,277.77
  6. Step 6: Final answer
    x = 53,013.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.